Improvement in machines for uniting the uppers and soles of boots and shoes



l SSheets-Sheet 1. G. McKAY.& H. P. FAIRFIELD. MACHINE FUR 'UNITING THE'UPPERS AND SOLES 0F BOlOTS AND SHOES. No,169,4.63 Patented Nov.2, 1875.

w @my W N. PETERS PHOTO-LITMOGRAPHER. wASHmGTuN, D C.

3 Shees--Sheel 2. G. McKAY & H. P. FAIRFIELD.

MACHINE FOR UNITING THE PPERS .ANDv SOLES 0F BODTS AND S OES.

No.169463, Patented Nov. 2, 1.875.

N, PETERS, PHDTO-L|THOGRAPHER. wASmNGTON, D Cy 3 Sheets-Sheet3- G. MCKAYa HLP. FAIRFIELD. MACHINE FOR UNITING THE PPERS AND SOLES 0F BOOTS ANDSHOE Y N 169453l IPatented Nov.2,1875.

N, PETERS, FMOTOUTHOGRAPHER, WASHINGTON, q CA Uivrrnn STATES GORDONMCKAY,OF CAMBRIDGE, AND HADLEY P. FAIRFIELD, OF BOSTON,

MASSACHUSETTS.` y

IMPROVEMENT IN MACHINES FOR UNITING THE UPPERS AND SOLES 0F BOOTS ANDSHOESH Specification forming part of LettersPatent No. 169,463, datedNovember 2, `1875; application..filed` May 15, 1875.

To all whom it may concern:

Beit known that We, GORDON MCKAY, of Cambridge, Middlesex county,andHADLEY P; FAIRFIELD, of Boston, Suffolk county, all inthe State ofMassachusetts, Ahave invented jointly an `Improved Machine forUnitingthe Uppers and Soles of Boots and Shoes, `of which the followingis a specification:

This invention relates to mechanism for uniting the uppers and soles of`boots and shoes,

v is an improvement on other machines heretoforeV patented by us,`andthe mechanism hereindescribed is to be used in connection witha:shoesupport and properfeeding/mechanism for moving the shoe, and forthese mechanisms we prefer as the support a curved salient horn or arm,and feeding mechanism shown in United `States Patents Nos. 122,985 and140,400, but we might employ any other Wellknown feeding mechanism. u

The horn and feeding mechanisms, not being a part of this invention, arenot represented in the drawings, as they are fully described in thepatents above cited, and are shown in the well-known McKaysewing-machine.

In machines using nails cut from wire-like material it is common tocause the length of the nail to vary automatically by the variation inthe thickness of the sole or soles.

In this machine, instead of awire we employ a at strip of metal fromwhich the nails are formed. The strip being of a Width equal to thelength of the longest nail desired, and fed through the strip-guiding`tube, it is cut into nails, and each nail is forced into anaiLguidingchannel, where it isV corrugated by dies or compressors operated fromthe cam-shaft by a pivoted lever, and then the nail is movedlfor- Wardsupported at its point on a movable rest,

and placed within the line of movement of the.

head-cutter, which is carried in ways in the reciprocating or slidinghead which carries the nail-driver and nail-guiding tube, and whichadapts itself in its lowest position to the thickness of the materialinto which the nail is `to be driven. This sliding head is adapted torise and fall in guides in the framing, and carries the nail-guidin gtube and head-cutter, and in` line with the nailfguiding tube is thenaildriver, it being steadiedby suitable` guides,

The sliding head israisedfrom thework prior to each feed movement of theshoe, torelease the shoe from pressure,4 and to allow it to be `movedeasily by a Acam ou the main shaft through a leverwhich engages afriction-.roller or other projection on the sliding head, andthesliding'headafter thev feeding movement has taken placeis thrown down bya suitable spring until the nail-guiding tube rests on'pthe sole.` Inthis position thenail-restislmoved forward within the open side ofthenail-guiding tube,thereby supportingy a nailL in the tube in the'pathofthe nail-head cuttenwhichis then thrown forward, andcutso` the headofthe nail more or less, according to the position of the sliding headandicutter,.and `in thisway the corrugated nail is cut tocorrespondLwith the thickness of the materiahthey projecting through theinner. sole only just far enough to meet or clinch. a litt] el againstthe iron support. This strip fromv which the-` nails-are lout Vwillpreferably'have a groove near-its point-forming edge` to weakenthelpoint of the. nail so that itwillrreadily turn and form aqzclinch.The nail-driving mechanism,.orthat. which operates the driver, isoperated through azwalking-beamv or a lever, andV by a toggle-jointedconnection or link,.aslin United States Patent N o. 155,962,andneedvnot, therefore,be herein described, as such devices operate.inthisas in the machine described in such patent. l

Figui-er1 is a topview, partially in section,

^ of thisl our improved mechanism. Fig. 2 is a front. view;` Fig. 3, adetail of the nail-guiding tube and movable rest for the nail, thelatterbeing` in position to sustain anail whilelits head is being cut off bythe headfcutter.` Fig. A is a side view. Fig.5 is a back View` ofthesliding head and nail` guiding tube and headcutter, and Fig. 6 isasection takenA through the strip-guiding tube. e y A is the frame ofthemachine, of"` any suitable shape to sustain the workingparts, andprovided with a shaft, a, having ady or band wheel, al, and with cams bb1?)2 c 4c1 c2 d. An arm, d1, pivoted at. d2 tothe frame, and with oneend resting under therolleiwor projection e of the sliding head e1,guided inzways c2, is struck by cam d at each revolution of `the shaftc, so as to raise the. sliding head c1 and 2 mense the nail-guiding tubefand head-cutter-guiding box f1 prior to each feed-inovement, and thesliding head is allowed to drop so that the tube f rests on the soleafter each feed-movement. be cut is placed in 'the strip-guiding tubef2,

' and is fed forward in such tube by a pawlmoved by the cam b2 on themain shaft. The :cutter i has opposite it a stationary cutter, jz,

and as a nail, la, is cut from the strip f2 it is moved toward thenail-guiding tube, the drawing, Fig. 1, showing la number of such nails-so cut off and moved at right angles to the movement of the strip, eachnail acting against the other. When the nails come between thecorrugating-dies k1 such dies, having corrugated and concaved facessuitably shaped, are

caused to move against the `iides of the nail and press it into somewhatc ral form, and corrugate or nick it. These dies are held in a lfixedportion of the frame, and are caused to approach each other through theaction of projections .cv on a lever, k2, made to turn about the hub Z,(shown in section, Fig. 1,) and moved by a cam, c2, on shaft a. Afterthe nail is corrugated it is passed along in the nailguiding channel andthrough the hub l. The bottom of the nail-guiding channel is formed by amovable plate or rest, l1, (see Figs. 1 and 3,) which is reciprocated bya pivoted lever, Z2,

operated by cam con cam b1, the forward end of the lever having aninclined actuating face,

and entering a slot in the rest il, so as to move i it forward and backat the desired times, the

lever Z2 being moved in one direction prefera. bly by a spring'. Theforward end of this rest forms a shelf for a nail, and when the rest isthrown forward it passes within the nail-guiding tube f, as shown inFig. 3, and there supports a nail, the tube being open at its side forsuchv purpose. Therest has no vertical motion, and is lstationary withrelation to the in- 11er surface of the shoe-sole, and as the slidinghead, by the action of the nail-guiding tubeon the sole, is raised orlowered, with re- 'flation to the shelf, the head-cutter m, carried bythe head e1, will be raised more or less above the shelf l1, and thepoint of the nail and the headcuttermin its forward movement,

, actuated by the face-grooved cam b, through forced out through thechannel m2, Fig. 5. yThehead of thenail being cut off, the shelf l1 isWithdrawn, the nail drops into the tube j',

y it being prevented from moving back by the The strip from which thenails are to nails standing back of it, and when drawn back theprojection n on the shelf or rest ll closes the side of the tube f, andprevents the nail from falling out. The nail-driver 1" then operates inthe usual way to drive the n'ail from the tube f into the sole. Thestationary cutter nl, against which cutter m works, is made adjustableby means of the screws n2 o, Fig. 4. The nails fed into the tube farenot always of the same thickness, and therefore it is not safe to crowdthe cut-off nails from the tube f2 against a rigid portion of thesliding head e1, and to prevent any damage from the' accumulating nails,and to keep them held properly together, we place in the sliding headel, and opposite the passage through which the separate nails move, aspring-supporting plate, o1, having a shank, 02, surrounded by a spiralspring, one end of which bears against o1, and the other against a nut,p, screwthreaded, and turned into the sliding head, the nut governingthe force of the spring. The cutters and feeding devices are adjustableas to their movements.

-With this our invention strips of wood such asare commonly used inpegging-machines may be used instead of metal; but we prefer metal.

To properly sever a nail, 7c, from the strip, the cutterz' should movesufficiently far forward to pass its cutting-edge beyond the oppositeside of the strip, and in so doing all the severed nails are movedforward for a distance greater than the lthickness of the nail lastsevered. During this movement the outer nail 7c is pressed against thespring-supporting plate o1, and when the cutter i is drawn back thespring about the shank o2 presses back the plate o, and with it thenails, leaving the nail at the outer end of the shelf 'll in position tobe driven by the driver r.

Having described our invention, we claiml. The combination of thestrip-guiding tube and cutter for severing the nails, with the movabledies for corrugating the nails after they are cut from the strip, and intheir passage to the tube and driver, substantially as described.

2. The combination of the movable nailguiding-tube and the rest orshelf, adapted to support a nail within the tube, with the headcutter toout the nail to the required length, substantially as described.

3. The combination, in a nailing-machine, of mechanism for cutting nailsfrom a strip, mechanism for corrugating the nails cut from the strip,and mechanism for supporting and cutting each nail just prior to itsbeing driven to a length corresponding to the thickness of the sole,substantially as described. I 4:. The combination of the strip-guidingtube and nail-cutter with the movable rest for the severed nails,substantially as described.

5. The combination of the movable slide and Vnail-tube, variable inposition, according to the thickness of the sole of the boot or shoe,and its head-cutter, with the rest for supporting the nail while beingout, and with the naildriver, substantially as described.

6. The combination, With the strip-guiding tube, of a cutter adapted toout a nail from the strip and move it into a nail-guiding pzissage,substantially in line with the path of the eutters movement, as and forthe purpose set forth.

7. The combination of the cutter fi, adapted to sever the nails from thenail-strip and move them forward in the neil-guiding passage, with thespring-supporting plate o1, substantially as described.

In testimony whereof We have signed our names to this specification inthe presence of two subscribing Witnesses.

GORDON MGKAY. RADLEY P. FAIRFIELD.

Witnesses:

E. K. BEECHER, FRANK F'. STANLEY.

